These 15 States Have the Most Dangerous Bridges in America

America’s bridges are looking pretty shaky. Ten years after the I-35W bridge over the Mississippi River in Minneapolis collapsed, killing 13 people, 1 out of every 11 bridges in the United States is structurally deficient, according to the American Society of Civil Engineers. That’s a slight improvement from a decade ago, when 12.3% of our bridges were in need of serious repair. But it’s still worrisome, especially for anyone making one of the 188 million trips over those 56,007 spans.

Structurally deficient bridges “may not be imminently unsafe, [but] they are in need of attention,” according to the American Road & Transportation Builders Association. But with 1,276 miles of bridges in need of repair across the country, it’s hard for government agencies to keep up with the necessary fixes, even as the amount of money dedicated to bridge repairs and construction increased from $23.2 billion in 2007 to $32.3 billion in 2016. At the current rate, it would take three decades to upgrade all the crumbling bridges in the U.S.

In some states the situation is much worse than in others, according to the builders association. The organization ranked all 50 states based on their share of deficient bridges and also highlighted the busiest troubled bridges in each state. While fewer than 3% of the bridges in Arizona, Texas, Florida, and Nevada are in bad shape, the same can’t be said for these 15 states, which have the highest rates of structurally deficient bridges in the U.S.

15. New York

Most traveled troubled bridge: I-278 over Relief at I-278 over The Narrows

Of 17,462 bridges in New York, 1,928 are in need of serious repair. The most traveled is the stretch of I-278 that crosses The Narrows between Staten Island and Brooklyn. This bridge from 1961 carries 175,362 cars every day. Other problems spots include The Kosciuszko Bridge over Newtown Creek between Brooklyn and Queens, which was built in 1940 and carries more than 140,000 cars every day, and several bridges on the Belt Parkway that were built in the 1940s.

Next: Michigan

14. Michigan

Michigan has 11,156 bridges, and 1,234 of them are structurally deficient. The Second Boulevard bridge over I-94 in Detroit gets the most traffic — 146,000 cars daily. It was built in 1954. The I-75 bridge over the Rouge River in Detroit is another trouble spot. Currently, a large section of the interstate is closed through 2018 as that bridge and 13 others are being rehabbed.

Next: New Hampshire

13. New Hampshire

New Hampshire’s quaint covered bridges attract tourists, but some of the state’s other bridges are in sorry shape. | iStock.com/Straystone

Percent of bridges that are structurally deficient: 12.2%

Most traveled troubled bridge: I-293/NH 3A/Everett Turnpike over the North Branch of the Piscataquog River

Of the 2,486 bridges in the Granite State, 304 are structurally deficient. People who drive I-293 in Manchester must cross several bridges that are in need of repair, including one over the Piscataquog River that carries 73,000 cars per day and was built in 1957.

Next: Mississippi

12. Mississippi

Vicksburg Bridge | iStock.com/Woodkern

Percent of bridges that are structurally deficient: 12.3%

Most traveled troubled bridge: Vicksburg Bridge

Mississippi has 17,068 bridges, and 2,098 are in dire need of repairs, including the Vicksburg Bridge, which carries I-20 over the Mississippi River between Vicksburg, Mississippi, and Delta, Louisiana. More than 27,000 cars cross the 1973 bridge every day.

Next: Missouri

11. Missouri

The I-55 South bridge over the Mississippi River in St. Louis is one of many in the state that are need of repair. | iStock.com/kevinmwalsh

Percent of bridges that are structurally deficient: 13.1%

Most traveled troubled bridge: I-270 E over Conway Road in St. Louis

Missouri has more bridges than any of the state on this list — 24,468 — and 13% of them, or 3,195, are structurally deficient. The most traveled is I-270 eastbound crossing Conway Road in St. Louis, which was built in 1964 and carries 193,574 cars daily.

Next: Louisiana

10. Louisiana

The Calcasieu River Bridge in Louisiana is one of many in the state that are structurally deficient. | iStock.com/typhoonski

Percent of bridges that are structurally deficient: 13.5%

Most traveled troubled bridge: I-20 over St. Louis Southwestern Rail in Shreveport

More than 1,700 of Louisiana’s 12,915 bridges are structurally deficient. The most used is the I-20 bridge over the St. Louis Southwestern Railroad in Shreveport. It carries 86,400 cars a day and was built in 1965. The I-10 bridge over Veterans Memorial Highway in Jefferson Parish carries 84,720 cars per day and is also in serious need of repair.

Next: Maine

9. Maine

A view of the Maine coast | Andrew Caballero-Reynolds/AFP/Getty Images

Percent of bridges that are structurally deficient: 14.4%

Most traveled troubled bridge: I-295 Southbound over Route 88

Maine has 2,450 bridges, of which 352 have serious structural problems. The southbound I-295 crossing over Route 88 in Yarmouth is the busiest. The bridge was built in 1959 and carries 26,370 cars per day.

Next: Oklahoma

8. Oklahoma

Oklahoma has more than 23,000 bridges. | iStock.com/Manakin

Percent of bridges that are structurally deficient: 15%

Most traveled troubled bridge: I-40 over Crooked Oak Creek in Oklahoma City

There are just over 23,000 bridges in Oklahoma, and 3,460 of them are structurally deficient. The I-40 bridge over Crooked Oak Creek in Oklahoma City (just east of the junction with I-35) is the busiest. Constructed in 1060, it carries 87,300 vehicles a day.

Next: North Dakota

7. North Dakota

About 15% of North Dakota bridges are deficient. | iStock.com/dk_photos

Percent of bridges that are structurally deficient: 15%

Most traveled troubled bridge: U.S. Highway 10 over the Sheyenne River in West Fargo

In North Dakota, 661 of the 4,400 bridges are structurally deficient. The busiest is U.S. Highway 10 over the Sheyenne River in West Fargo, which was built in 1938 and carries 13,780 vehicles daily.

Next: Nebraska

6. Nebraska

Nebraska has more than 15,000 bridges. | iStock.com

Percent of bridges that are structurally deficient: 15.4%

Most traveled troubled bridge: U.S. 75 over J St in Omaha

Of Nebraska’s 15,334 bridges, 2,361 are structurally deficient. The U.S. 75 bridge over J Street in Omaha carries the most traffic with 42,568 cars per day. It was built in 1970.

Next: West Virginia

5. West Virginia

West Virginia’s famous New River Gorge Bridge isn’t structurally deficient, but many others in the state are. | iStock.com/BackyardProduction

Percent of bridges that are structurally deficient: 15.1%

Most traveled troubled bridge: I-64 over CR 61/12 in Kanawha County

West Virginia has 7,217 bridges, and 1,247 of them are in need of serious repair. The busiest is a bridge on I-64 over CR 61/12 in Kanawha County that carries 83,827 vehicles daily. It was built in 1974.

Next: South Dakota

4. South Dakota

Almost a fifth of South Dakota are deficient. | iStock.com/wellesenterprises

Roughly one-fifth of South Dakota bridges — 1,147 out of 5,849 — are structurally deficient. The busiest is in Sioux Falls, where West 12th Street crosses over the Ellis & Eastern Railroad just west of Grange Avenue. This bridge carries 22,694 vehicles day and was built in 1965.

Next: Pennsylvania

3. Pennsylvania

Motorists drive on I-95 in Philadelphia during a snowstorm. The interstate has several structurally deficient bridges. | Drew Hallowell/Getty Images

In Pennsylvania, close to 20%, of bridges are structurally deficient — 4,506 out of 22,791. The busiest is a stretch of the Delaware Expressway (I-95) in Philadelphia that crosses over Sergeant and Huntingdon streets near Aramingo Avenue, which carries 208,978 vehicles per day. In fact, all 10 of Pennsylvania’s busiest bridges in need of repair are at various points on I-95 in Philadelphia.

Next: Iowa

2. Iowa

For a relatively small state, Iowa has a lot of bridges — 24,184 — and 4,968 of them are structurally deficient. The busiest is the Centennial Bridge, which crosses the Mississippi River and links Davenport, Iowa, with Rock Island, Illinois. Every day, 32,000 vehicles use the bridge, which was built in 1940.

1. Rhode Island

Most traveled troubled bridge: I-95 over U.S. 6 and the Woonasquatucket River in Providence

For the third year in a row, Rhode Island takes the top spot in the ranking of states with the most structurally deficient bridges. A quarter of Rhode Island’s 772 bridges need to be repaired, including a stretch of I-95 over U.S. 6 and the Woonasquatucket River in Providence. The road over this bridge carries 171,707 cars a day and was built in 1964.